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A Semi-Lagrangian Transport Scheme with Spectral Interpolation
Publisher: American Meteorological Society
Abstract: Advective transport using the flexible and stable semi-Lagrangian scheme coupled with the highly accurate spectral interpolation in a limited domain is demonstrated. The spectral method for solving nonperiodic boundary ...
Improvement of Surface Flux Calculations in the Atmospheric Surface Layer
Publisher: American Meteorological Society
Abstract: Simple and efficient formulas for calculating surface fluxes are presented for the nondimensional profile functional forms of wind and temperature in the atmospheric surface layer. Four formulations representing nondimensional ...
A Semi-Lagrangian Spectral Algorithm for Pollutant Transport and Diffusion Studies
Publisher: American Meteorological Society
Abstract: A semi-Lagrangian model was developed based on the atmospheric transport-diffusion equation, employing the semi-Lagrangian technique incorporated with the spectral method. The numerical algorithms of the semi-Lagrangian ...
Pseudospectral Technique for Calculation of Atmospheric Boundary Layer Flows
Publisher: American Meteorological Society
Abstract: A pseudospectral method and its numerical solution algorithm for application to boundary layer problems in the atmosphere are presented. The method introduces the evaluation of a polynomial function when the solution is ...
Finite-Element Numerical Modeling of Atmospheric Turbulent Boundary Layer
Publisher: American Meteorological Society
Abstract: A dynamic turbulent boundary-layer model in the neutral atmosphere is constructed, using a dynamic turbulent equation of the eddy viscosity coefficient for momentum derived from the relationship among the turbulent dissipation ...
Deep Eddy Energy and Topographic Rossby Waves in the Gulf of Mexico
Publisher: American Meteorological Society
Abstract: Observations suggest the hypothesis that deep eddy kinetic energy (EKE) in the Gulf of Mexico can be accounted for by topographic Rossby waves (TRWs). It is presumed that the TRWs are forced by Loop Current (LC) pulsation, ...
The Nonlinear Interactions and Maintenance of the Large-Scale Moving Waves in the Atmosphere
Publisher: American Meteorological Society
Abstract: An analysis of the linear and nonlinear interactions of atmospheric motion in the wavenumber-frequency domain indicates that the kinetic energy of the large-scale moving waves is essentially maintained by the nonlinear ...
Vertical Diffusion in the Lower Atmosphere Using Aircraft Measurements of 222Rn
Publisher: American Meteorological Society
Abstract: Vertical profiles of 222Rn concentrations measured from 3 to 6 September 1995 in the northeastern United States, using a new radon instrument designed for aircraft measurements, are presented. A vertical diffusion model ...
A Statistical Model for Wind Prediction at a Mountain and Valley Station Near Anderson Creek, California
Publisher: American Meteorological Society
Abstract: Statistical models for surface-wind predictions at a mountain and a valley station near Anderson Creek, California, have been constructed. It is found that the surface wind speed depends primarily on the slope wind, ...
Optimized Design of Various Ag Decorated Sn-xAg-Cu0.7 Solder Bump on Cycling Fatigue Reliability for Wafer-Level Chip Scale Packaging
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of Ag content (0 ∼ 3 wt%) in Sn-xAgCu0.7 solders on microstructure characteristics and low cycling fatigue at different temperature conditions are overall investigated. To increase Ag content, the solidus points ...
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